Volume 8 (2020)
Volume 7 (2019)
Volume 6 (2018)
Volume 5 (2017)
Volume 4 (2016)
Volume 3 (2015)
Volume 2 (2014)
Keywords = malononitrile
Number of Articles: 9
Application of nano TiO2@KSF as an efficient and reusable catalyst for the synthesis of pyrano-pyrimidines
Volume 7, Issue 2, pp. 90-159, Serial No. 23 , April 2019, , Pages 112-117
Abstract
In this work, Nano TiO2@KSF used as an efficient, homogeneous and reusable catalyst for the synthesis of pyrano[2,3-d]-pyrimidinone derivatives via three-component reactions between malononitrile, barbituric acid and various aldehydes in water. The products were formed in high yields within short reaction ... Read More)
Efficient one-pot synthesis of 6-amino-4-aryl-5-cyano-2-methyl-4H-pyran-3-carboxylates catalyzed by nano MgO in water
Volume 6, Issue 2, pp. 109-217, Serial No. 19 , April 2018, , Pages 125-133
Abstract
Water is a versatile solvent in many ways, and in this sense performing organic reactions in this medium is now of great interest. The one-pot reaction of ethyl acetoacetate or benzyl acetoacetate, with benzaldehydes and malononitrile to provide some novel 6-amino-4-aryl-5-cyano-2-methyl-4H-pyran-3-carboxylates ... Read More)
One-pot, organocatalytic synthesis of spirooxindoles using citric acid in aqueous media
Volume 5, Issue 4, pp. 364-493, Serial No. 17 , October 2017, , Pages 407-416
Abstract
Spirooxindoles are important synthetic targets possessing extended biological activity and drug discovery applications.The development of multicomponent reactions designed to produce elaborate biologically active compounds has become an important area of research in organic, combinatorial, and medicinal ... Read More)
Cu(II)-Schiff base/SBA-15 as an efficient catalyst for synthesis of chromeno [4′,3′-b]pyrano[6,5-b]quinoline derivatives
Volume 5, Issue 4, pp. 364-493, Serial No. 17 , October 2017, , Pages 442-448
Abstract
Some chromeno[4′,3′-b]pyrano[6,5-b]quinoline derivatives were synthesized by condensation of 2-amino-4-aryl-3-cyano-5-oxo-4H, 5H -pyrano-[3,2-c] chromenes and 1,3-cyclohexanedione in an environmentally benign and efficient method by Cu(II)-Schiff base/SBA-15 as an environmentally friendly ... Read More![Cu(II)-Schiff base/SBA-15 as an efficient catalyst for synthesis of chromeno [4′,3′-b]pyrano[6,5-b]quinoline derivatives](javascript:loadModal('Cu(II)-Schiff base/SBA-15 as an efficient catalyst ... ', 'data/icc/coversheet/791480248262.png'))
N-methyl pyridinium-p-toluene Sulfonate (NMPyTs) catalyzed synthesis of pyrano[2,3-c]pyrazoles
Volume 5, Issue 3, pp. 237-363, Serial No. 16 , July 2017, , Pages 268-277
Abstract
Abstarct:A simple one-pot synthesis of pyrano[ 2,3-c]pyrazoles was developed by a three-component reaction of various benzaldehydes, malononitrile and 1-phenyl or hydro-3-methyl-1H-pyrazol-5(4H)-one in the presence of N-methyl pyridinium p-toluene sulfonate (NMPyTs) as a catalyst. All of the synthesized ... Read More![N-methyl pyridinium-p-toluene Sulfonate (NMPyTs) catalyzed synthesis of pyrano[2,3-c]pyrazoles](javascript:loadModal('N-methyl pyridinium-p-toluene Sulfonate (NMPyTs) c ... ', 'data/icc/coversheet/281491161823.jpg'))
Highly efficient synthesis of tetrahydrobenzo[b]pyrans under visible light promoted by cesium carbonate
Volume 5, Issue 2, pp. 121-236, Serial No. 15 , April 2017, , Pages 167-172
Abstract
Multi-component coupling reaction (MCR) is a powerful synthetic tool for the synthesis of biologically active compounds. Development of such multi-component coupling reaction strategies in visible light has been of considerable interest, as they provide simple and rapid access to a large number of organic ... Read More![Highly efficient synthesis of tetrahydrobenzo[b]pyrans under visible light promoted by cesium carbonate](javascript:loadModal('Highly efficient synthesis of tetrahydrobenzo[b]py ... ', 'data/icc/coversheet/981484544243.jpg'))
Tetra-N-Butyl ammonium hydroxide mediated one-pot synthesis of pyrano [2, 3-d] pyrimidinone derivatives
Volume 5, Issue 1, pp. 1-120, Serial No. 14 , January 2017, , Pages 115-120
Abstract
Tetra-N-Butyl Ammonium Hydroxide was used as a catalyst for one-pot, three component condensation reactions consisting of aromatic aldehydes, malononitrile and barbituric acid in ethanol:water solvent system at 60oC. Current method has major advantages like mild reaction conditions with simple operation, ... Read More![Tetra-N-Butyl ammonium hydroxide mediated one-pot synthesis of pyrano [2, 3-d] pyrimidinone derivatives](javascript:loadModal('Tetra-N-Butyl ammonium hydroxide mediated one-pot ... ', 'data/icc/coversheet/291477726077.png'))
An efficient one-Pot green synthesis of 4H-Benzo[b]pyrans using guanidinium chloride as polyfunctional organocatalyst
Volume 4, Issue 1, pp. 1-132, Serial No. 10 , January 2016, , Pages 57-66
Abstract
A simple, efficient, and high yielding one-pot protocol has been developed for the synthesis of 4H-benzo[b]pyrans scaffolds installing a three-component tandem Knoevenagel-cyclocondensation reaction of an aldehyde, malononitrile and dimedone using guanidinium chloride as polyfunctional organocatalyst ... Read More![An efficient one-Pot green synthesis of 4H-Benzo[b]pyrans using guanidinium chloride as polyfunctional organocatalyst](javascript:loadModal('An efficient one-Pot green synthesis of 4H-Benzo[b ... ', 'data/icc/coversheet/141439611140.png'))
Unexpected one pot pseudo four-component reaction for the synthesis of (10E)-N-benzylidene-2-phenylH-imidazo [1,2-a]pyridin-3-amine derivatives under solvent-free conditions
Volume 3, Issue 4, pp. 283-387, Serial No. 9 , October 2015, , Pages 302-309
Abstract
This work described an efficient Pseudo four-component synthesis of (10E)-N-benzylidene-2-phenylH-imidazo[1,2-a]pyridin-3-amine derivatives from 2-aminopyridin, malononitrile and arylaldehydes in the presence of NaOH under solvent-free and conventional heating condition in good to excellent yields. A ... Read More![Unexpected one pot pseudo four-component reaction for the synthesis of (10E)-N-benzylidene-2-phenylH-imidazo [1,2-a]pyridin-3-amine derivatives under solvent-free conditions](javascript:loadModal('Unexpected one pot pseudo four-component reaction ... ', 'data/icc/coversheet/191423033453.png'))